There are multi-political powers existed side by side in China from 10 century to 13 century suh as the Liao Dynasty,Five Dynasties and Ten Kingdoms,Song Dynasty,Werstern Xia Regine,Jin Dynasty,Western Liao Regine and so on.At that time,Helong area also have taken on a aspect torn apart by rival principalities,there are nationalities of Huihe,Tubo,Dangxiang,Dada and Qidan here,and builds the political powers of Jiaosiluo,Western xia,Shazhouhuihe and Ganzhouhuihe.So,national relationship get numerous and complicated.This article,on the basis of analyzing geographical factor in Helong area and national distribution in the Song Dynasty and the Western Xia regine,puts forward national pattern of six branch powers and two structural circles,and expounds its internal factor shaped and external form of expression.
